NBC's been on the social networking kick these Olympics, and the Peacock Network has taken great pride in illustrating tweets of the rich, famous, and otherwise. They stumbled a bit yesterday, though, as the very Canadian black metal rocker Justin Bieber found himself identified as an American in NBC's graphic. (It also shows the U.S. flag behind Lady Gaga instead of her appropriate International Ensign of XXyxlyon-12.) Good job, good effort NBC!